Overview
The OPA2132UA, produced by Texas Instruments, is a high-speed FET-input operational amplifier designed for applications requiring superior DC performance and fast settling times. This dual-channel amplifier is part of the OPAx132 series, which includes single, dual, and quad-channel versions, all sharing the same specifications to maximize design flexibility. The OPA2132UA is particularly suited for applications involving high source impedance, such as audio, data acquisition, and communication systems. Its robust design eliminates common issues like phase reversal and overload, making it a reliable choice for both general-purpose and specialized applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Bias Current | 50 | pA | Max |
| Bandwidth | 8 | MHz | |
| Slew Rate | 20 | V/µs | |
| Noise | 8 | nV/√Hz | at 1kHz |
| Distortion | 0.00008 | % | |
| Open Loop Gain | 126 | dB | at 2kΩ load |
| Supply Voltage Range | ±2.5 to ±18 | V | |
| Offset Voltage | 500 | µV | Max |
| Operating Temperature | -40 to +85 | °C |
Key Features
- FET input with low input bias current (50pA max)
- High bandwidth (8MHz) and slew rate (20V/µs)
- Low noise (8nV/√Hz at 1kHz) and distortion (0.00008%)
- Wide supply voltage range (±2.5V to ±18V)
- Excellent dynamic behavior under high load capacitance
- Independent circuitry minimizes crosstalk in dual-channel version
Applications
The OPA2132UA is widely used in various applications, including SAR ADC drivers, voltage reference buffers, transimpedance amplifiers, photodiode amplifiers, active filters, and integrators. Its high performance and reliability make it ideal for audio processing, data acquisition systems, and communication equipment, particularly in scenarios where high source impedance is encountered.
Q & A
1. What is the input bias current of the OPA2132UA?
The input bias current is 50pA maximum.
2. What is the bandwidth of the OPA2132UA?
The bandwidth is 8MHz.
3. What is the slew rate of the OPA2132UA?
The slew rate is 20V/µs.
4. What is the noise level of the OPA2132UA?
The noise level is 8nV/√Hz at 1kHz.
5. What is the distortion level of the OPA2132UA?
The distortion level is 0.00008%.
6. What is the open loop gain of the OPA2132UA?
The open loop gain is 126dB at a 2kΩ load.
7. What is the supply voltage range of the OPA2132UA?
The supply voltage range is ±2.5V to ±18V.
8. What is the offset voltage of the OPA2132UA?
The offset voltage is 500µV maximum.
9. What is the operating temperature range of the OPA2132UA?
The operating temperature range is -40°C to +85°C.
10. What are the typical applications of the OPA2132UA?
Typical applications include SAR ADC drivers, voltage reference buffers, transimpedance amplifiers, photodiode amplifiers, active filters, and integrators.
